:root{--ink:#17383b;--muted:#6a7b7b;--bone:#f7f3ee;--paper:#fffdfa;--aqua:#16a9a7;--aqua2:#0f7f82;--line:rgba(19,84,87,.13);--shadow:0 28px 70px rgba(26,69,72,.12);--danger:#a54545;--ok:#17876f}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:radial-gradient(circle at 78% 15%,rgba(75,210,201,.12),transparent 32rem),linear-gradient(180deg,#faf7f2,var(--bone))}body{padding-bottom:60px}.checkout-topbar{height:84px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 max(24px,calc((100vw - 1240px)/2));border-bottom:1px solid var(--line);background:rgba(250,247,242,.84);backdrop-filter:blur(16px);position:sticky;top:0;z-index:30}.checkout-brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.checkout-brand img{width:42px;height:42px;object-fit:contain}.checkout-brand 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